"I say, Poirot, here's a queer thing! Look at how the bodies are laid out around the table. As if they were having a tea party. And in fact there is tea in the tea cups, but the tea pot is empty. Bone dry in fact, and no evidence that it's been used."
"Ah, 'Astings, always you miss the obvious solution. The murderer has carried away the real tea pot with him, and left this one in its place. Note how its pattern is subtly different from the one on the tea cups."
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